HP Pavillion DV7 3101sa - purchased 2010.
Windows 7
When lid is opened, you hear the usual whoosh of the fan, the control bar lights are lit i.e. (red) sound off / volume control / (red) wifi off. Screen remains black as if it will not wake up, but thefan and lights remain on. Laptop only responds to being turned off.
Have tried power dumps, removing battery, pressing every 'F' key under the sun while dancing the dance of the doomed!
A few hours before this, I had just installed windows updates, happily surfing for a few hours, closed lid, opened lid two hours later .............Boom.
Is there any help and way back for this problem?????